Candle filters
Candle filters are filter elements with the following qualities:
Small diameter usually less than 1.97 in. (50 mm)
Substantial length usually greater than 39.37 in. (1, 000 mm)
Very fine openings: 25 to 150 microns, according to the application
Candle filters can be used:
For direct filtration
As medium support (for example iatoms in precoat filters)
The filtration capacity can be modified easily by varying the number of candle filters to obtain the required filter area.
Cleaning
A stronger flow in the backward direction, known as backwash, cleans the candle filters effectively.
Maintenance
Because the filter elements are particularly rigid and rugged, they can be disassembled without risk of damage to the filter surface.